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LTC3370 数据表(PDF) 9 Page - Linear Technology

部件名 LTC3370
功能描述  60V Low IQ Buck Controller Plus 4-Channel 8A Configurable Buck DC/DCs
PDF  44 Pages
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制造商  LINER [Linear Technology]
网页  http://www.linear.com
标志 LINER - Linear Technology

LTC3370 数据表(HTML) 9 Page - Linear Technology

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LTC3372
9
Rev. A
For more information www.analog.com
TYPICAL PERFORMANCE CHARACTERISTICS
(HV Controller) TA = 25°C, unless otherwise noted.
Output Voltage Line Regulation
Forced Continuous Mode
Maximum Current Sense
Threshold vs Duty Cycle
SENSE– Pin Input Bias Current
INTVCC Voltage vs Gate Charge
Current VOUT = 3.3V
INTVCC Voltage vs Gate Charge
Current VOUT = 5V
INTVCC Line Regulation in
Dropout
Current Limit in Foldback
VOUT = 3.3V
VOUT = 5V
INPUT VOLTAGE (V)
5 10 15 20 25 30 35 40 45 50 55 60
3.306
3.308
3.310
3.312
3.314
3.316
3.318
5.004
5.005
5.006
5.007
5.008
5.009
5.010
3372 G09
DUTY CYCLE (%)
0 10 20 30 40 50 60 70 80 90 100
60
62
64
66
68
70
72
74
76
78
80
3372 G10
FORCED CONTINUOUS MODE
Burst Mode
OPERATION
PULSE–SKIPPING MODE
VITH (V)
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
–40
–20
0
20
40
60
80
3372 G11
Maximum Current Sense Voltage
vs ITH Voltage
FORCED CONTINUOUS MODE
VIN = 12V
VOUT = 5V
SENSE– VOLTAGE (V)
3 3.3 3.6 3.9 4.2 4.5 4.8 5.1 5.4 5.7 6.0
–100
0
100
200
300
400
500
600
700
800
900
3372 G12
VIN = 4.5V
VIN = 6V
VIN = 12V
GATE CHARGE CURRENT (mA)
0
5
10
15
20
25
30
3.75
4.00
4.25
4.50
4.75
5.00
5.25
3372 G13
GATE CHARGE CURRENT (mA)
0
5
10
15
20
25
30
4.75
4.80
4.85
4.90
4.95
5.00
5.05
5.10
5.15
5.20
5.25
3372 G14
VOUT = 3.3V
GATE CHARGE CURRENT = 10mA
INPUT VOLTAGE (V)
4.50 4.75 5.00 5.25 5.50 5.75 6.00 6.25 6.50
4.00
4.25
4.50
4.75
5.00
5.25
5.50
3372 G15
VOUT TO REGULATED VOLTAGE RATIO (%)
0 10 20 30 40 50 60 70 80 90 100
20
30
40
50
60
70
80
3372 G16



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